Pre-release steps

1. [D] Download the installation RPM (http://download.devel.redhat.com/brewroot/work/tasks/3008/4663008/nexus-2.0.6-1.el5.x86_64.rpm)
2. [D] Download the original RPM of version 1.9.2.3 (in case of we need to do a recovery)

Release steps

1. [D] turn on "service temporary unavailable" redirect on Apache
2. [D] go to /services/nexus/nexus-professional-webapp-1.9.2.3/bin/jsw/linux-x86-64
3. [D] Stop nexus service
   ./nexus stop
4. [D] go to /services/nexus and back-up sonatype-work directory
5. [D] remove all Nexus configuration files from puppet. They are no longer needed in this version
6. [D] unlink /services/nexus/sonatype-work/nexus/plugin-repository/nexus-branding-plugin-1.9.2.3
7. run the downloaded nexus-2.0-6.x86_64.rpm to install the new version
8. [D] create a directory "tmp" and change its owner to jetty (it is in the "nexus-professional..." directory
9. [D] go to bin/jsw/linux-x86-64 of the unpacked new version and start the new version
   ./nexus start
10. [D,H] check the nexus-gc.log for errors
11. [H] access the web interface, go to Administration->Server and enable Force Base URL
12. [H] check the functionality
13. [D] remove service temporarily available redirect in Apache

Rollback

1. [D] stop the new version of nexus
2. [D] revert back sonatype-work directory
3. [D] uninstall the new RPM and install the old one
4. [D] re-create the symbolic link /services/nexus/sonatype-work/nexus/plugin-repository/nexus-branding-plugin-1.9.2.3 to point to /services/nexus/nexus-professional-webapp-1.9.2.3/runtime/apps/nexus/optional-plugins/nexus-branding-plugin-1.9.2.3
5. in /etc/init.d check, that the "nexus" link points to the proper version of Nexus /services/nexus/nexus-professional-webapp-1.9.2.3/bin/jsw/linux-x86-64/nexus
6. [D] get back the configuration files to Puppet
7. [D] start the old version of Nexus
8. [H] check the functionality
9. [D] remove service temporarily available redirect